a loggingHandler for Python to send notifications via the Prowl API

prowlHandler.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import logging


class ProwlHandler(logging.Handler):
    """
    A handler class which sends a Prowl notification for each logging event.
    """

    priority_map = {
        "DEBUG": -2,
        "INFO": -1,
        "WARNING": 0,
        "ERROR": 1,
        "CRITICAL": 2
    }

    API_URL = 'https://api.prowlapp.com/publicapi/add'

    def mapPriority(self, levelName):
        """
        Default value of 0 if not provided.
        An integer value ranging [-2, 2] representing:
        Very Low    = -2
        Moderate    = -1
        Normal      = 0
        High        = 1
        Emergency   = 2

        Emergency priority messages may bypass quiet hours
        according to the user's settings.
        """
        return self.priority_map.get(levelName)

    def __init__(self, apikey, applicationName):
        """
        Initialize the handler.

        """
        if not apikey:
            raise ValueError("apikey is not optional")

        self.apikey = apikey
        self.application = applicationName

        logging.Handler.__init__(self)

    def emit(self, record):
        """
        Emit a record.

        Format the record and send it
        """
        try:
            import urllib
            import urllib2

            req = urllib2.Request(self.API_URL)

            data = {'apikey': self.apikey,
                    'application': self.application,
                    'event': record.levelname.lower(),
                    'description': self.format(record),
                    'priority': self.mapPriority(record.levelname)}

            req.add_data(urllib.urlencode(data))

            urllib2.urlopen(req)

        except (KeyboardInterrupt, SystemExit):
            raise
        except:
            self.handleError(record)